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<?php function get_numerics ($str) { preg_match_all('/\d+\./', $str, $matches); return $matches[0]; } $one = 'foo6.000.000 đ'; $two = 'bar baz 2 bar'; $three = 'qux bar 12 quux (3 foo)'; $four = 'foo baz 3 bar (13 quux foo)'; print_r(get_numerics($one)); print_r(get_numerics($two)); print_r(get_numerics($three)); print_r(get_numerics($four));
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => 6. [1] => 000. ) Array ( ) Array ( ) Array ( )

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